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https://docs.python.org/3/howto/regex.html

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Regular Expression HOWTO — Python 3.13.3 documentation

Regular expressions (called REs, or regexes, or regex patterns) are essentially a tiny, highly specialized programming language embedded inside Python and made available through the re module.

https://www.w3schools.com/python/python_regex.asp

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Python RegEx - W3Schools

RegEx can be used to check if a string contains the specified search pattern. Python has a built-in package called re, which can be used to work with Regular Expressions. Import the re module: When you have imported the re module, you can start using regular expressions: Search the string to see if it starts with "The" and ends with "Spain":

https://stackoverflow.com/questions/25292838/applying-regex-to-a-...

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python - applying regex to a pandas dataframe - Stack Overflow

Here is what I put together: return re.findall('(\d\d\d\d)', year) df['Season2'] = df['Season'].apply(split_it(x)) Output would be a column called Season2 that contains the year before the hyphen. I'm sure theres an easier way to do it without regex, but more importantly, i'm trying to figure out what I did wrong. Thanks for any help in advance.

https://www.programiz.com/python-programming/regex

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Python RegEx (With Examples) - Programiz

Python has a module named re to work with RegEx. Here's an example: if result: print("Search successful.") else: print("Search unsuccessful.") Here, we used re.match() function to search pattern within the test_string. The method returns a match object if the search is successful. If not, it returns None.

https://www.geeksforgeeks.org/regular-expression-python-examples/

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Python RegEx - GeeksforGeeks

How to Use RegEx in Python? You can use RegEx in Python after importing re module. This Python code uses regular expressions to search for the word "portal" in the given string and then prints the start and end indices of the matched word within the string. Note: Here r character (r’portal’) stands for raw, not regex.

https://regex101.com/

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regex101: build, test, and debug regex

Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.

https://www.askpython.com/python/examples/matching-strings-using-...

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Matching Entire Strings in Python using Regular Expressions

Python’s regex library, re, makes it easy to match exact strings and perform other types of text processing tasks. In this article, we will explore how to use the re library to match exact strings in Python, with good implementation examples. What are Regular expressions?

https://blog.appsignal.com/2025/01/15/how-to-use-regular-expressi...

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How to Use Regular Expressions in Python | AppSignal Blog

In Python, the re module offers a robust implementation of regex, allowing developers to handle complex text manipulation efficiently. In this article, we'll get to grips with regular expressions and provide practical code examples — from the basic to more advanced — so you can understand how to use regex in Python.

https://docs.python.org/3/library/re.html

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re — Regular expression operations — Python 3.13.3 documentation

Regular expressions use the backslash character ('\') to indicate special forms or to allow special characters to be used without invoking their special meaning.

https://medium.com/@coderhack.com/using-regular-expressions-for-s...

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Using Regular Expressions for String Validation in Python

Regular expressions (regex) provide a flexible and declarative language for matching text patterns in Python. In this post, we’ll explore how regex can be used for string validation and...

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